Saw-set.



Patented Dec. 26, I899.

F. HANNA.

SAW SET.

(Application filed Aug. 25, 189 .1

(No Model.)

Snow Woe NITED? STATES PATENT OFFICE.

FRANK HANNA, OF SANTA ANA, CALIFORNIA, ASSIGNOR OF ONE-FOURTH TO JOHNBEATTY, JR, OF SAME PLACE.

SAW-SET.

SPECIFICATION forming part of Letters Patent No. 640,131, dated December26, 1899. Application filed August 25, 1899. Serial No. 728,460. (Nomodel.)

To all whom it may concern:

Be it known that I, FRANK HANNA, a citizen of the United States,residing at Santa Ana, in the county of Orange and State of California,have invented a new and useful Improvement in Saw-Sets, of which thefollowing is aspecification.

My invention relates to saw-sets, and has for its object to provide astrong, simple, and cheap saw-set that can be used 011 saws of differentsizes with equal ease and that is very easy of adjustment to the angleat which the teeth are to be set. This object I accomplish in the mannerand by the means hereinafter more fully described in detail, andparticularly pointed out in the claims, reference being had to theaccompanying drawings, in which like reference-letters indicate likeparts in all the figures.

Figure 1 is a front view of my invention. Fig. 2 is a top plan view ofsame. Fig. 3 is a sectional view on line a: m, Fig. 1.

My invention consists of a saw-set in one solid piece, the centralportion A of which is triangular in cross-section, the apex of thetriangle being at the bottom, and has roughened sides a to engage thesaw-teeth and prevent the saw-set from slipping. On each side of saidcentral portionAthe saw-set is formed into a handle B. Just at one sideof the said central portion A is a projection G from the bottom of thesaw-set, and through this projection O, diagonally to the longitudinalaxis of the saw-set, is a screwthreaded hole 0. A

screw D works in the hole 0 and adjusts the amount of set to be giventhe saw-teeth.

The operation of my invention is as follows: The operator places theportion A between two of the teeth to be set and, having adjusted thescrew D as desired, twists the saw-set by the handles B until the screwD strikes the saw. This sets two teeth. The instrument is then placedbetween the next two unset teeth and the same process repeated.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A saw-set having a central portion trian gular in cross-section withroughened sides, handles extending from said central portion, aperforated projection and a set-screw Working in said projection,substantially as shown and described.

2. A saw-set having a central portion triangular in cross-section withroughened sides, handles extending from said central portion, aperforated projection from the lower edge of said saw-set at one side ofsaid central portion and a set-screw working in said projection,substantially as shown and described.

In testimony whereof I hereto affix my signature in the presence of twowitnesses.

FRANK HANNA.

Witnesses:

F. O. DANIEL, N. D. BENEDICT.

